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| author | Lizhi Hou <lizhi.hou@amd.com> | 2026-04-09 08:22:59 -0700 |
|---|---|---|
| committer | Lizhi Hou <lizhi.hou@amd.com> | 2026-04-09 13:41:47 -0700 |
| commit | e0169d0c690f03f379bf71d9332bb2065a5c6a05 (patch) | |
| tree | 28d451cdb48a2cad460d5182c6d1c6cb5be57138 /Documentation/accel | |
| parent | af29fcbe806ecd10078c406470fecb902b3c0e55 (diff) | |
| download | linux-next-e0169d0c690f03f379bf71d9332bb2065a5c6a05.tar.gz linux-next-e0169d0c690f03f379bf71d9332bb2065a5c6a05.zip | |
accel/amdxdna: Expose per-client BO memory usage via fdinfo
Implement amdxdna_show_fdinfo() to report per-client memory usage,
including below driver-specific memory stat:
- heap allocation
- internal BO allocation
- external BO allocation
Hook the implementation into the DRM fdinfo infrastructure via
drm_driver.show_fdinfo, while continuing to expose standard DRM
memory stat through drm_show_memory_stats().
This improves observability of per-process memory usage and aligns
with existing fdinfo reporting mechanisms used by other drivers.
Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Max Zhen <max.zhen@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260409152259.176883-1-lizhi.hou@amd.com
Diffstat (limited to 'Documentation/accel')
| -rw-r--r-- | Documentation/accel/amdxdna/amdnpu.rst | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/accel/amdxdna/amdnpu.rst b/Documentation/accel/amdxdna/amdnpu.rst index 42e54904f9a8..064973bf4893 100644 --- a/Documentation/accel/amdxdna/amdnpu.rst +++ b/Documentation/accel/amdxdna/amdnpu.rst @@ -270,6 +270,31 @@ MERT can report various kinds of telemetry information like the following: * Deep Sleep counter * etc. +.. _amdxdna-usage-stats: + +Amdxdna DRM client usage stats implementation +============================================= + +The amdxdna driver implements the DRM client usage stats specification as +documented in :ref:`drm-client-usage-stats`. + +Example of the output showing the implemented key value pairs: + +:: + + pos: 0 + flags: 0100002 + mnt_id: 29 + ino: 939 + drm-driver: amdxdna_accel_driver + drm-client-id: 3219 + drm-pdev: 0000:c5:00.1 + amdxdna_accel_driver-heap-alloc: 60 KiB + amdxdna_accel_driver-internal-alloc: 67588 KiB + amdxdna_accel_driver-external-alloc: 0 + drm-total-memory: 67632 KiB + drm-shared-memory: 0 + References ========== |